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Finding the Fourth Proportional to 19,455.84, 26,847.54 and 10,957.50

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Solution

The fourth proportional to 19,455.84, 26,847.54 and 10,957.50 is: 15,120.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,455.84 : 26,847.54 = 10,957.50 : x
  2. Step 2: Convert to fraction form
    19,455.84/26,847.54 = 10,957.50/x
  3. Step 3: Cross multiply
    19,455.84x = 26,847.54 × 10,957.50
  4. Step 4: Simplify right side
    19,455.84x = 294,181,919.55
  5. Step 5: Solve for x
    x = 294,181,919.55/19,455.84
  6. Step 6: Final answer
    x = 15,120.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.